Period
to 22 November 2017

The following table provides summary statistics for contract job vacancies advertised in Essex with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 6 months to 22 November 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Test-Driven Development (TDD)
6 months to
22 Nov 2017
Same period 2016 Same period 2015
Rank 2 22 34
Rank change year-on-year +20 +12 +5
Contract jobs citing TDD 258 64 62
As % of all contract IT jobs advertised in Essex 32.33% 7.31% 5.18%
As % of the Processes & Methodologies category 37.77% 8.57% 6.56%
Number of daily rates quoted 198 45 33
Essex median daily rate £513 £450 £450
Median daily rate % change year-on-year +13.89% - +5.88%
10th Percentile £388 £260 £319
90th Percentile £600 £567 £600
East of England median daily rate £485 £475 £413
% change year-on-year +2.11% +15.15% +3.13%
Number of hourly rates quoted 24 5 11
Essex median hourly rate £62.50 £36.00 £36.67
Median hourly rate % change year-on-year +73.61% -1.83% -
10th Percentile £37.00 £31.36 £31.00
90th Percentile £63.75 £36.61 £40.75
East of England median hourly rate £62.50 £36.51 £37.45
% change year-on-year +71.19% -2.51% -

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Essex with a requirement for process or methodology skills.

All Process and Methodology Skills
Essex
Contract vacancies with a requirement for process or methodology skills 683 747 945
As % of all contract IT jobs advertised in Essex 85.59% 85.27% 78.95%
Number of daily rates quoted 470 451 518
Essex median daily rate £500 £350 £400
Median daily rate % change year-on-year +42.86% -12.50% -
10th Percentile £300 £225 £249
90th Percentile £600 £525 £538
East of England median daily rate £425 £400 £400
% change year-on-year +6.25% - +6.67%
Number of hourly rates quoted 61 140 144
Essex median hourly rate £31.03 £31.70 £31.25
Median hourly rate % change year-on-year -2.11% +1.44% +5.93%
10th Percentile £12.26 £15.75 £15.75
90th Percentile £63.75 £43.75 £43.75
East of England median hourly rate £31.50 £32.00 £23.75
% change year-on-year -1.56% +34.74% -1.53%

TDD
Job Vacancy Trend in Essex

Job postings citing TDD as a percentage of all IT jobs advertised in Essex.

Job vacancy trend for TDD in Essex

TDD
Contractor Daily Rate Trend in Essex

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing TDD in Essex.

Contractor daily rate trend for TDD in Essex

TDD
Contractor Daily Rate Histogram in Essex

The daily rate distribution of IT jobs citing TDD in Essex over the 6 months to 22 November 2017.

Contractor daily rate histogram for TDD in Essex

TDD
Contractor Hourly Rate Trend in Essex

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing TDD in Essex.

Contractor hourly rate trend for TDD in Essex

TDD
Contractor Hourly Rate Histogram in Essex

The hourly rate distribution of IT jobs citing TDD in Essex over the 6 months to 22 November 2017.

Contractor hourly rate histogram for TDD in Essex

TDD
Contract Job Locations in Essex

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Essex region over the 6 months to 22 November 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Southend-on-Sea +4 76 £525 +0.87% 1
Brentwood +2 25 £320 +20.75% 1
Basildon +18 13 £450 +91.49%
Witham - 2 £519 -
Colchester - 1 £425 -
Saffron Walden - 1 - -
TDD
East of England

For the 6 months to 22 November 2017, IT contractor jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Essex region with a requirement for TDD.

1 237 (91.86%) Agile Software Development
2 172 (66.67%) SOA
3 165 (63.95%) Middleware
4 129 (50.00%) XML
5 128 (49.61%) Scrum
6 126 (48.84%) Manufacturing
7 122 (47.29%) Finance
8 118 (45.74%) Marketing
9 115 (44.57%) Digital Marketing
9 115 (44.57%) Oracle
10 113 (43.80%) SAP
10 113 (43.80%) Business Intelligence
10 113 (43.80%) Electronics
10 113 (43.80%) Telecoms
10 113 (43.80%) Programme Management
11 106 (41.09%) JSON
12 102 (39.53%) Continuous Integration
13 100 (38.76%) WSO2
14 98 (37.98%) Maven
15 95 (36.82%) Oracle SOA Suite
16 92 (35.66%) DevOps
17 89 (34.50%) Greenfield Project
17 89 (34.50%) Java
18 88 (34.11%) Jenkins
19 82 (31.78%) Mule
20 81 (31.40%) XPath
20 81 (31.40%) XSLT
21 80 (31.01%) Kanban
22 77 (29.84%) Oracle Service Bus
22 77 (29.84%) Apache Camel

TDD
Co-occurring IT Skills in Essex by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 95 (36.82%) Oracle SOA Suite
2 82 (31.78%) Mule
3 77 (29.84%) Oracle Service Bus
4 30 (11.63%) JBoss
5 28 (10.85%) Confluence
6 25 (9.69%) WebLogic
7 18 (6.98%) Apache
8 15 (5.81%) WebSphere
9 9 (3.49%) Cloud Foundry
9 9 (3.49%) SharePoint
10 5 (1.94%) Adobe Experience Manager
10 5 (1.94%) CMS
11 3 (1.16%) WebSphere Application Server
12 1 (0.39%) Umbraco
Cloud Services
1 30 (11.63%) Microsoft Azure
2 24 (9.30%) Amazon AWS
3 17 (6.59%) GitHub
4 6 (2.33%) PaaS
5 5 (1.94%) IaaS
5 5 (1.94%) SaaS
6 3 (1.16%) Google Analytics
7 2 (0.78%) npm
Communications & Networking
1 44 (17.05%) HTTP
2 38 (14.73%) SSL
2 38 (14.73%) TCP/IP
3 7 (2.71%) LDAP
4 2 (0.78%) SMS
Database & Business Intelligence
1 54 (20.93%) Relational Database
2 16 (6.20%) NoSQL
3 15 (5.81%) SQL Server
4 14 (5.43%) RDBMS
5 7 (2.71%) MySQL
6 6 (2.33%) MariaDB
7 2 (0.78%) MongoDB
8 1 (0.39%) PostgreSQL
8 1 (0.39%) Redis
8 1 (0.39%) SQLite
Development Applications
1 98 (37.98%) Maven
2 88 (34.11%) Jenkins
3 49 (18.99%) Git (software)
4 37 (14.34%) JIRA
5 34 (13.18%) Subversion
6 29 (11.24%) JUnit
7 25 (9.69%) JIRA Agile
7 25 (9.69%) SoapUI
8 19 (7.36%) Gradle
9 11 (4.26%) Ant
10 10 (3.88%) Selenium
11 9 (3.49%) Calabash
12 8 (3.10%) Android Studio
12 8 (3.10%) JMeter
13 7 (2.71%) Cucumber
13 7 (2.71%) Mockito
14 6 (2.33%) Zephyr
15 4 (1.55%) Eclipse
15 4 (1.55%) Xcode
16 3 (1.16%) Artifactory
General
1 126 (48.84%) Manufacturing
2 122 (47.29%) Finance
3 118 (45.74%) Marketing
4 113 (43.80%) Electronics
4 113 (43.80%) Telecoms
5 9 (3.49%) Automotive
6 2 (0.78%) Legal
6 2 (0.78%) Publishing
7 1 (0.39%) Advertising
Job Titles
1 130 (50.39%) Developer
2 69 (26.74%) Integration Developer
3 66 (25.58%) Agile Developer
4 60 (23.26%) SOA Developer
5 58 (22.48%) Senior Developer
6 41 (15.89%) DevOps Engineer
7 32 (12.40%) Senior Agile Developer
8 30 (11.63%) Architect
9 27 (10.47%) Java Developer
10 26 (10.08%) Lead Developer
11 25 (9.69%) Scrum Master
12 20 (7.75%) Middleware Engineer
13 16 (6.20%) Integration Engineer
14 14 (5.43%) Analyst
15 12 (4.65%) Agile Coach
15 12 (4.65%) Technical Architect
16 11 (4.26%) Android Developer
17 9 (3.49%) Agile Scrum Master
17 9 (3.49%) J2EE Developer
18 8 (3.10%) Test Analyst
Libraries, Frameworks & Software Standards
1 165 (63.95%) Middleware
2 129 (50.00%) XML
3 106 (41.09%) JSON
4 81 (31.40%) XSLT
5 77 (29.84%) Apache Camel
6 76 (29.46%) Swagger
6 76 (29.46%) WireMock
7 64 (24.81%) SOAP
8 61 (23.64%) Web Services
9 51 (19.77%) RESTful
10 35 (13.57%) HTML
11 31 (12.02%) J2EE
12 28 (10.85%) REST
12 28 (10.85%) Spring
13 23 (8.91%) AngularJS
13 23 (8.91%) CSS
14 19 (7.36%) JPA
15 17 (6.59%) Spring Boot
15 17 (6.59%) Struts
15 17 (6.59%) WSDL
Miscellaneous
1 89 (34.50%) Greenfield Project
2 31 (12.02%) Enterprise Software
3 19 (7.36%) Virtual Team
4 13 (5.04%) Animation
5 7 (2.71%) Analytical Skills
6 6 (2.33%) Mobile App
7 5 (1.94%) N-Tier
8 4 (1.55%) iPhone
9 3 (1.16%) Client/Server
9 3 (1.16%) Computer Science
10 2 (0.78%) Reference Data
10 2 (0.78%) RIA
10 2 (0.78%) Web 2.0
11 1 (0.39%) Clustering
11 1 (0.39%) iPad
11 1 (0.39%) Replication
11 1 (0.39%) User Experience
Operating Systems
1 51 (19.77%) Linux
2 29 (11.24%) Unix
3 27 (10.47%) Red Hat Enterprise Linux
4 19 (7.36%) Mac OS X
5 11 (4.26%) Android
6 8 (3.10%) Solaris
7 6 (2.33%) Windows
8 5 (1.94%) AIX
8 5 (1.94%) Apple iOS
8 5 (1.94%) HPUX
Processes & Methodologies
1 237 (91.86%) Agile Software Development
2 172 (66.67%) SOA
3 128 (49.61%) Scrum
4 115 (44.57%) Digital Marketing
5 113 (43.80%) Business Intelligence
5 113 (43.80%) Programme Management
6 102 (39.53%) Continuous Integration
7 92 (35.66%) DevOps
8 80 (31.01%) Kanban
9 62 (24.03%) User Stories
10 56 (21.71%) Configuration Management
11 46 (17.83%) Coaching
12 45 (17.44%) Test Automation
13 42 (16.28%) Mentoring
14 36 (13.95%) API Design
14 36 (13.95%) BDD
15 34 (13.18%) Software Engineering
16 26 (10.08%) Microservices
16 26 (10.08%) Open Source
17 25 (9.69%) MVC
Programming Languages
1 89 (34.50%) Java
2 81 (31.40%) XPath
3 47 (18.22%) JavaScript
4 30 (11.63%) SQL
5 14 (5.43%) C
5 14 (5.43%) Groovy
6 12 (4.65%) PL/SQL
7 11 (4.26%) Perl
8 5 (1.94%) Shell Script
9 4 (1.55%) Apple Swift
9 4 (1.55%) C#
9 4 (1.55%) C++
9 4 (1.55%) Objective-C
10 3 (1.16%) Bash Shell
10 3 (1.16%) Python
11 2 (0.78%) Ruby
12 1 (0.39%) ES6
12 1 (0.39%) T-SQL
Qualifications
1 7 (2.71%) ISEB
2 4 (1.55%) ISEB Practitioner
3 3 (1.16%) Security Cleared
4 2 (0.78%) Degree
4 2 (0.78%) ISTQB
5 1 (0.39%) BPSS Clearance
Quality Assurance & Compliance
1 6 (2.33%) Disclosure Scotland
2 5 (1.94%) QA
3 2 (0.78%) Data Quality
System Software
1 20 (7.75%) Docker
2 3 (1.16%) Virtual Machines
3 1 (0.39%) Active Directory
3 1 (0.39%) VMware Infrastructure
Systems Management
1 48 (18.60%) Opscode Chef
1 48 (18.60%) Puppet
2 26 (10.08%) Ansible
3 1 (0.39%) Business Desktop Deployment
3 1 (0.39%) Terraform
Vendors
1 115 (44.57%) Oracle
2 113 (43.80%) SAP
3 100 (38.76%) WSO2
4 9 (3.49%) CA
4 9 (3.49%) CA Agile Central
5 7 (2.71%) HP
6 5 (1.94%) Adobe
6 5 (1.94%) IBM
6 5 (1.94%) webMethods
7 3 (1.16%) Google
8 2 (0.78%) Omniture
9 1 (0.39%) AppDynamics
9 1 (0.39%) VMware
9 1 (0.39%) Xamarin